EP0752926B1 - Oszillierendes reibungsschweissen - Google Patents

Oszillierendes reibungsschweissen Download PDF

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Publication number
EP0752926B1
EP0752926B1 EP95907888A EP95907888A EP0752926B1 EP 0752926 B1 EP0752926 B1 EP 0752926B1 EP 95907888 A EP95907888 A EP 95907888A EP 95907888 A EP95907888 A EP 95907888A EP 0752926 B1 EP0752926 B1 EP 0752926B1
Authority
EP
European Patent Office
Prior art keywords
probe
members
welding
pin
plasticised
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95907888A
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English (en)
French (fr)
Other versions
EP0752926A1 (de
Inventor
Ole Terje Midling
Edward James Morley
Anders Sandvik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Welding Institute England
Original Assignee
Welding Institute England
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Filing date
Publication date
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Priority claimed from NO941144A external-priority patent/NO941144D0/no
Application filed by Welding Institute England filed Critical Welding Institute England
Publication of EP0752926A1 publication Critical patent/EP0752926A1/de
Application granted granted Critical
Publication of EP0752926B1 publication Critical patent/EP0752926B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
    • B23K20/12—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding
    • B23K20/122—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding
    • B23K20/1245—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating the heat being generated by friction; Friction welding using a non-consumable tool, e.g. friction stir welding characterised by the apparatus
    • B23K20/1255—Tools therefor, e.g. characterised by the shape of the probe
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/06—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding
    • B29C65/0681—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using friction, e.g. spin welding created by a tool
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1282—Stepped joint cross-sections comprising at least one overlap joint-segment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1284—Stepped joint cross-sections comprising at least one butt joint-segment
    • B29C66/12841—Stepped joint cross-sections comprising at least one butt joint-segment comprising at least two butt joint-segments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/14—Particular design of joint configurations particular design of the joint cross-sections the joint having the same thickness as the thickness of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4342—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces
    • B29C66/43421—Joining substantially flat articles for forming corner connections, e.g. for making V-shaped pieces with a right angle, e.g. for making L-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/434—Joining substantially flat articles for forming corner connections, fork connections or cross connections
    • B29C66/4344—Joining substantially flat articles for forming fork connections, e.g. for making Y-shaped pieces
    • B29C66/43441—Joining substantially flat articles for forming fork connections, e.g. for making Y-shaped pieces with two right angles, e.g. for making T-shaped pieces, H-shaped pieces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/812—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/8126—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the composition, by the structure, by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps characterised by the intensive physical properties or by the optical properties of the material constituting the pressing elements, e.g. constituting the welding jaws or clamps
    • B29C66/81264—Mechanical properties, e.g. hardness
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81427—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth
    • B29C66/81429—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined comprising a single ridge, e.g. for making a weakening line; comprising a single tooth comprising a single tooth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table

Definitions

  • the present invention relates to a method of friction welding for joining of (metal) members and more particularly to so-called friction stir welding based on a relative rubbing movement between a probe of harder material and members to be joined.
  • the present invention also is directed to an improved tool to be applied in the friction welding process.
  • Friction welding based on the principle of "rubbing" of articles to be joined together so as to generate a sufficient amount of heat, thus generating plasticised conditions in the adjacent surfaces, has been known and practised for several decades.
  • the frictional heat is generated solely by the two to be joined components.
  • the resulting weld seams suffer from a number of disadvantages inherent in the applied processes.
  • the main drawback which considerably limits the applicability of friction welding is that at least one of the components to be welded has to be axis-symmetric. Consequently, such process is not applicable for e.g. structural applications requesting provision of longitudinal continuous welds.
  • Friction stir welding is known from WO93/10935.
  • a probe (third body) of a harder material than the treated workpieces is applied in the welding process.
  • Friction stir welding is based on a relative cyclic movement between the probe and the workpieces, urging the probe and workpieces together to create a plasticised region in the workpiece region due to generated frictional heat, stopping the relative cyclic movement and allowing the plasticised material to solidify. Thus no heat is generated due to a relative motion between the workpieces to be joined.
  • the method is illustrated by several examples of different workpiece materials (plastics, metals), applications (reparation of cracks, sealing, joining) and embodiments of the applied probe.
  • the probe bottom part In order to achieve a proper consolidation of the weld metal the probe bottom part (shoulder) must maintain during the whole welding operation (forward movement) in an intimate contact with surface of the joined members. If the probe shoulder during this forward movement even temporarily "lifts" from the surface a small amount of plasticised welding material will be expelled behind the probe thus causing occurrence of voids in the weld since there is no available material to fill the vacant space after the expelled material.
  • a further object of the invention is to improve the present known friction stir butt welding method to provide also lap welds and three or more components joint configuration.
  • Another object of the present invention is to provide a new type of probe ensuring uniform homogenized weld seams exhibiting reduced heat affected zone.
  • a non-consumable probe 1 comprising a rotational cylindrical body 2 having an upper part 22 being connected to a power source, e.g. an engine (not shown in the drawing), and a bottom part 23 provided with a separate pin 24, is applied for joining (welding) of two butt to butt arranged members (metal plates) 3 and 4.
  • a power source e.g. an engine (not shown in the drawing)
  • a bottom part 23 provided with a separate pin 24
  • the surface configuration comprises advantageously two or more separate blades 25 vertically disposed and laterally protruding from the central portion of the pin.
  • Microstructure of welding seams provided by this novel type of the pin exhibits sound joints composed of interlocked plasticised segments of the joined members with minimal material turbulence.
  • the composite design of the applied probe 1 comprising a separate probe pin compared to the monolithic design of the previously known probes presents several advantages. Firstly, the tool (probe) is capable of adjustment of the depth of pin insertion, thus offering a process flexibility. Secondly, the pin portion can be easily interchanged between different tool units (shoulder/holder) and thus adapted for welding of members having various wall thickness.
  • the concave bottom surface 23 of the probe 1 exhibiting slight inclination in relation normal to the welding surfaces combined with the above described screw configuration of the pin 24 (not shown in the Figure) ensures that the plasticised material is driven both vertically and laterally in a weld zone, thereby transforming metal between different levels across the weld profile.
  • the concave shape of the probe shoulder provides a certain non-symmetric compression on the surface of the members resulting in vertical flow/transition of material. This in co-operation with horizontal movement of material due to the pin's outer configuration results in high quality void free seams.
  • Fig. 4 illustrates schematically an optimum relation between a downward pressure in N/mm 2 applied on the probe and the actual welding speed ⁇ (mm/min) at different rotational speeds ensuring a sound void free weld having a smooth surface.
  • the actual values of optimal pressure/welding speed are dependent on several factors, e.g. applied material of the joined members (Al-alloys), shoulder geometry etc.
  • a simple formula defining an optimal relation between the radius of the probe shoulder (r s ) and the wall thickness of the welded members W will be: 5 W 2 ⁇ r s ⁇ W 2
  • the material of the probe is harder than the workpieces/members to be joined.
  • the material should exhibit a good strength at elevated temperatures, e.g. hot work steel, high speed steel or cermet material can be applied.
  • Figs. 5a-e display schematically in fragmentary perspective views different types of welds provided by the method and probe according to the present invention, where Fig. 5a shows a conventional butt weld, Fig. 5b shows a T-section connection between two members, Fig. 5c is an overlap weld seam, Fig. 5d shows another variant of T-section composed of three members, and finally Fig. 5e illustrates provision of a corner weld between two members arranged in a normal plane to each other.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Claims (8)

  1. Verfahren zur oszillierenden Reibungsschweißung von Bauteilen (3, 4), insbesondere zum Verbinden extrodierter zusammengesetzter Formen, bei dem die zusammengesetzten Bauteile (3, 4) zusammengedrückt und aneinander befestigt werden, in die zusammengesetzten Bauteile längs der Verbindungslinie ein Stempel (1) aus einem härteren Material als das der zu verbindenden Teile (3, 4) unter drehender Bewegung, die Reibungswärme erzeugt, eingeführt und dadurch ein plastifizierter Bereich im Material der benachbarten Bauteile erzeugt wird, dadurch gekennzeichnet, daß das Verfahren ferner umfaßt: eine Homogenisierung der sich ergebenden Schweißnaht infolge eines verbesserten Flusses des plastifizierten Materials sowohl senkrecht als auch vertikal zur Längserstreckung der benachbarten zusammengesetzten Bauteile (3, 4), indem das erzeugte plastifizierte Material einem senkrechten Druck längs der Oberfläche der Bauteile (3, 4) ausgesetzt und gleichzeitig ein Materialfluß längs eines Stempel-Stifts in vertikaler Richtung bewirkt wird, der eine Verfestigung des plastifizierten Materials hinter dem Stempel ermöglicht.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, daß der untere Teil (23) des Stempels mit den benachbarten Oberflächen der zu verbindenden Bauteile unter einer leichten Neigung aus der Normalen zu Schweißoberflächen zur Anlage gebracht wird.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die äußere Konfiguration des Stempel-Stifts (24) einen vertikalen und seitlichen Fluß des plastifizierten Materials über eine Schweißzone gewährleistet.
  4. Verfahren nach einem der vorstehenden Ansprüche, dadurch gekennzeichnet, daß zwei oder mehr Bauteile durch Ausbildung einer T-artigen Schweißverbindung verschweißt werden.
  5. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die ausgebildete Schweißnaht eine Überlappungs-Schweißverbindung ist.
  6. Verfahren nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die ausgebildete Schweißnaht eine Eck-Schweißung ist, die zwei im wesentlichen unter einem Winkel zueinander angeordnete Bauteile verbindet.
  7. Unverbrauchbarer Stempel (1) zur oszillierenden Reibschweißung von Bauteilen (3, 4), mit einem drehbaren, im wesentlichen zylindrischen Körper (2), der einen mit einer Kraftquelle verbundenen oberen Teil (22) und einen mit einem Stift (24) versehenen unteren Teil (23) aufweist, dadurch gekennzeichnet, daß der untere Teil (23) des Stempels eine konkave Stirnfläche hat und der daran angebrachte Stift (24) ein auswechselbares Teil des Stempels mit einer Oberfläche in Form eines Gewindes ist.
  8. Stempel nach Anspruch 7, dadurch gekennzeichnet, daß der Stift mit wenigstens zwei vertikal angeordneten Platten versehen ist, die seitlich vom mittleren Teil des Stifts abstehen.
EP95907888A 1994-03-28 1995-01-05 Oszillierendes reibungsschweissen Expired - Lifetime EP0752926B1 (de)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
NO941144 1994-03-28
NO941144A NO941144D0 (no) 1994-03-28 1994-03-28 Fremgangsmåte ved friksjonssveising og anordning for samme
NO942790A NO942790D0 (no) 1994-03-28 1994-07-27 Fremgangsmåte ved friksjonssveising og anordning for samme
NO942790 1994-07-27
PCT/NO1995/000005 WO1995026254A1 (en) 1994-03-28 1995-01-05 Friction stir welding

Publications (2)

Publication Number Publication Date
EP0752926A1 EP0752926A1 (de) 1997-01-15
EP0752926B1 true EP0752926B1 (de) 1998-05-27

Family

ID=26648488

Family Applications (1)

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EP95907888A Expired - Lifetime EP0752926B1 (de) 1994-03-28 1995-01-05 Oszillierendes reibungsschweissen

Country Status (15)

Country Link
US (1) US5813592A (de)
EP (1) EP0752926B1 (de)
JP (1) JP2792233B2 (de)
KR (1) KR100219003B1 (de)
CN (1) CN1049618C (de)
AU (1) AU676424B2 (de)
CA (1) CA2182719C (de)
CZ (1) CZ287673B6 (de)
DE (1) DE69502716T2 (de)
DK (1) DK0752926T3 (de)
ES (1) ES2117851T3 (de)
FI (1) FI109886B (de)
NO (1) NO942790D0 (de)
PL (1) PL176524B1 (de)
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FI963889A (fi) 1996-09-27
EP0752926A1 (de) 1997-01-15
JP2792233B2 (ja) 1998-09-03
JPH09508073A (ja) 1997-08-19
US5813592A (en) 1998-09-29
CN1144499A (zh) 1997-03-05
CN1049618C (zh) 2000-02-23
AU1592395A (en) 1995-10-17
FI109886B (fi) 2002-10-31
DE69502716T2 (de) 1998-11-26
CZ258696A3 (en) 1997-04-16
AU676424B2 (en) 1997-03-06
CZ287673B6 (en) 2001-01-17
PL176524B1 (pl) 1999-06-30
CA2182719A1 (en) 1995-10-05
CA2182719C (en) 1999-06-29
WO1995026254A1 (en) 1995-10-05
NO942790D0 (no) 1994-07-27
ES2117851T3 (es) 1998-08-16
FI963889A0 (fi) 1996-09-27
DK0752926T3 (da) 1999-03-22
DE69502716D1 (de) 1998-07-02
KR100219003B1 (ko) 1999-09-01
PL316614A1 (en) 1997-01-20

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